Another scenario that is followed to reproduce the mass of the second component is the possible stiffness of the EoS. This is achievable by studying the upper and lower limit on the speed of sound, as well as the possible transition density. In this consideration, we have parametrized the EoS, according to Refs. [1]}, [2]}, [3]}, [4]}, [5]}, [6]}, [7]}, [8]}, as
\(P({\cal E})&=&\left\lbrace \begin{array}{ll}P_{\rm crust}({\cal E}), \quad {\cal E} \le {\cal E}_{\rm c-edge} & \\\\P_{\rm NM}({\cal E}), \quad {\cal E}_{\rm c-edge} \le {\cal E} \le {\cal E}_{\rm tr} & \\\\\left(\frac{v_{\rm s}}{c} \right)^2\left({\cal E}-{\cal E}_{\rm tr} \right)+P_{\rm NM}({\cal E}_{\rm tr}), \quad {\cal E}_{\rm tr} \le {\cal E} , & \ \end{array}\right.\) 
